iMac Intel 27" (Mid 2010) Dual Hard Drive Kit - iFixit Store
OWC 2.0TB HDD Upgrade Kit Compatible With 2009-2010 iMacs, Includes: Thermal Sensor, Tools, 2.0TB Hard Drive : Electronics
OWC SSD Upgrade Kits For 21.5-Inch iMac 2010
My 12 y/o son is so excited. Found him a pristine Mid-2010 27" iMac for $100. Going to give it the SSD upgrade but he's stoked to start recording music with it :